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TANK TESTING <br /> American Environmental Management Corporation (AEMC) inspected <br /> the three Gold Bond tanks in September 1986 to determine the <br /> feasibility of conducting precision leak testing. Based upon <br /> this inspection, AEMC has determined that the three No.6 fuel oil <br /> tanks cannot be precision tested in accordance with State regu- <br /> lations (Section 2643, Title 23, California Administrative Code), <br /> for the following reasons: <br /> 1. All three tanks consist of buried concrete vault-like <br /> structures which lack standard fill pipes. Access to the tanks <br /> is limited to openings ranging in size from a two foot diameter <br /> concrete-formed manway ( for the two 90 barrel tanks) to a five <br /> foot by five foot square access (for the 5,500 barrel tank). The <br /> tank accesses cannot be properly sealed to allow for use of an <br /> above ground standpipe which is needed to perform a full static <br /> head pressure test. <br /> 2. The 5 , 500 barrel tank is a cylindrical concrete-lined sump <br /> covered by a wood and tarp roof structure; the primary function <br /> being to keeep rain from entering the tank, and is not designed <br /> to hold product. It is in this above-ground roof structure that <br /> the five by five foot access is located. <br /> Low level testing of the smaller tanks (tank only testing) may be <br /> possible. However, due to the large product surface area by <br /> virtue of the two foot opening, accuracy may not be adequate. <br /> 2 <br />